Patents by Inventor Robert E. Groenig

Robert E. Groenig has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Fork lift
    Patent number: 4325442
    Abstract: A fork lift having two front wheels each driven by a separate hydraulic motor and a caster rear wheel. The hydraulic control controls the motors individually controlling speed, direction and steering the vehicle.
    Type: Grant
    Filed: December 31, 1979
    Date of Patent: April 20, 1982
    Inventor: Robert E. Groenig
  • Vehicle for picking fruit
    Patent number: 4000787
    Abstract: The machine disclosed herein is made up basically of a boom mounted on a frame supported by three widely spaced wheels. A platform is attached to the distal end of the boom for supporting an operator and the machine is equipped with hydraulic controls accessible to an operator on the platform. The machine can be steered by the individually controlled drive wheels. A picking bucket is carried by a separate boom connected to the main boom and accessible to the operator on the platform and the picking bucket can be swung over a box supported on the machine frame.
    Type: Grant
    Filed: September 16, 1974
    Date of Patent: January 4, 1977
    Inventor: Robert E. Groenig